157021791 is an odd 9-digits composite number following 157021790
and preceding 157021792 . In scientific notation, it is written as 1.57021791 × 10^8.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 104681192 positive integers (up to 157021791) that are relatively prime to 157021791.
157021791 has 4 divisors, whose sum is 209362392
The reverse of 157021791 is 197120751
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred fifty-seven million twenty-one thousand seven hundred ninety-one
Scientific notation
1.57021791 × 10^8
Engineering notation
1.57021791 × 10^6
Prime Factorization
3 × 52340597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157021791
Product of the distinct prime numbers
The prime factorization of 157021791 is 3 × 52340597.
Since it has a total of 2 prime factors.
8 , 10 , 89 , 95 , 585 , 622 , 4232 , 9287 , 84676 , 1135 , 102234 , 650161 , 9331126 , 1669314 , 61505911 , 45535291 , 913151607 , 823377783 , 9521398844 , 3826481760
n×2
314043582
n×3
471065373
n×4
628087164
n×5
785108955
n÷2
78510895.5
n÷3
52340597
n÷3
39255447.75
n÷5
31404358.2
n2
24655842848847681
n3
3.8715046027406E+24
n4
6.0791058658707E+32
n5
9.5455209073763E+40
2 √n
12530.833611536
3 √n
539.49402880479
4 √n
111.94120604825
5 √n
43.570443973703
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157021790
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157021791 can be divided by 4 positive divisors.
The sum of these divisors (counting 157021791) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010110111111011001011111
3
Ternary
101221110112101220
4
Quaternary
21112333121133
5
Quinary
310144144131
6
Senary
23325304423
8
Octal
1126773137
10
Decimal
157021791
12
Duodecimal
44705113
16
Hexadecimal
95bf65f
20
Vigesimal
2917e9b
36
Base36
2lhisf
md5
d2c6533253f1948dc635624ec56e7c00
sha1
ab204d2eef5f4e1951b3dd60ffd2d7e228cf1d28
sha256
1f58dc4bd58dfe1aa42378f3d013e72973626482686e290e651b89a8378bf249
sha512
713c25d725c81bccc962c53a6ff18a2f528d769e17752321eef23380242d797c7308d0f9a9d8fedfa7a85c41d9975a114521990947b1a0ea2e276154dfe6e021
ripemd-160
6a983da09f3b54294a6fdbbf1de4be9e6ab660f5
Diameter
314043582
Circumference
986597010.11822
Area
7.7458614762004E+16
Volume
1.6216920557745E+25
Surface area
3.0983445904802E+17
Circumference
986597010.11822
Perimeter
628087164
Area
24655842848847681
Diagonal
222062346.42031
Surface area
147935057093086086
Volume
3.8715046027406E+24
Space diagonal
271969719.90746
Perimeter
471065373
Area
1.0676293129409E+16
Altitude
135984859.95373
Surface area
1.0676293129409E+16
Volume
4.562611929988E+23
Height
74020782.140105